Concrete-mixer.



W. WOLTER & H. H. STOTTKOL CONCRETE MIXER. APPLICATION FILED MAY 8,1908.

903,426 Patented Nov. 10, 1908.

I 2 SHEETS-SHEET 1.

W. WOLTER & H. H. STOTTKO.

CONCRETE MIXER.

APPLICATION FILED MAY 8, 1908.

903,426. Patented Nov. 10, 1908.

2 SHEETSSHEET 2.

TTNITED s'rnrns Parana? rricn.

WILLIAM WOLTER, OF BURRESS, AND HERMAN H. STOTTKO, OF FAIRMONT,NEBRASKA.

go gcnnrE-mn.

, Specification of Letters Patent.

Patented Nov. '10, 1908.

Application filed. May 8, 1908. Serial No. 431,719.

To all whom it may concern:

Be it known that we, WiLLIAM Women and HERMAN H. Sro'r'rKo, citizens ofthe United States, residing at Burress and Fairmont, respectively, inthe county of Fillmore and State of Nebraska, have invented certain newand useful Improvements in Concrete-Mixers; and we do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to'which it appertains tomake and use the same, referencebeing had to the accompanying drawings,and to the letters and figures of reference marked thereon, which form apart of this specification.

This invention relates to new and'useful improvements in concrete mixersand the object in view-is to produce a simple and eflicient device of.this nature, whereby the various ingredients of the concrete may bethoroughly mixed, and comprises various v details of construction,combinations and arrangements of parts-which will be herein after fullydescribed and then specifically defined in the appended claim.

Our invention is illustrated in the accomanying drawings, in whichFigure 1 is a sectional View through our nnprovel mixer, parts beingshown in elevation. Fig. 2 is an end view of the mixer showing the truckupon which the mixer is mounted inside elevation. Fig. 3 is a sectionalview on line 33 of Fig. 1, and Fig. 4

is a detail perspective view.

Reference now being had to the details of the drawings by letter, Adesignates the truck of a vehicle mounted upon the wheels B, and C is aplatform of said truck upon which a motor 1) is mounted and also shaftsE journaled' in suitable bearings thereon. A

I sprocket wheel E fixed to one of the shafts E has belted connection Fwith said motor, and GrG designate friction driving wheels which arefixed to the shafts E. A'mixing receptacle H has two circular groovedbands or wheels I mounted upon the brackets J about the.circumferen cethereof, said receptacle being mounted at an inclination be tween saidbands as shown. Said friction wheels G contact with said grooved wheelsor bands and are adapted to impart a rotary movement to the receptacle.

. K designates a hopper which is stationary and has a feeding worm Ktherein.

A. sprocket wheelN is fixed 'to the end of the, shaft to the conveyorworm and a sprocket chain .N"connects the same with sprocket wheel Nupon one of the shafts F. O designates a clutch collar which splined tothe shaft E, and O is an operat ing'lever pivotally mounted at O on abracket secured to the frame of the device and rovided with a forked endengaging the clutch 0 and is adapted to move the same into or out ofengagement with the notch L upon the hub of the sprocket wheel N H ofsaid receptacle H, and T is a pipe leading through the hopper and intothe interior of the mixing receptacle H.

Mounted upon the inner wall of the mixing receptacle is a series ofstirring racks, designated by letter R and adetail view of one of whichis shown in Fig. 4 of the drawings. Said racks are fastened to the innercircumference of the mixer for the purpose of thoroughly agitating thematerials being mixed. An exit opening is formed in one end of the mixerand, when the material is thoroughly mixed, it may be 'fed throughdrawings.

From the foregoing, it will be noted that, by the provision of theapparatus shown and described, a simple and eificient means is affordedfor mixing ingredients for concrete and so arranged that the differentingredients will be thoroughly agitated and mixed together.

Whatweclaim to be new is tion with the running gear of a vehicle, aplatform mounted thereon and projecting gled bracket arms fastened indiagonal relaence of said mixing receptacle, the latter being mountedatan inclination, a hopper at one end of the; receptacle, bracket armssaid hopper, the opposite end of the receptacle having an opening ahorizontally distrough having a contracted end telescoping laterallyover the wheels of the running gear, shafts journaled in suitablebearings upon said platform, friction driving disks fixed to saidshafts, a mortar mixing receptacle, an-

tion with one another about the circuniferfastened to the running gearand supporting posed flange about said opening, a feeding.

Said hopper has a tubular exit projecl tion S projecting into a tubularprojection the hinged door M shown in Fig. 2 of the v A concrete mixercomprising, in combina- Within said horizontally disposed flange,. a oursi gnai zures the presence of two Witpipe lemdingi ghrgugh thetelescgp'gg pormesses; tions 0 sai ee in trough an ange, a 1 feedinglworm in sai trough and extending A 5 into t e contracted portionthereof, and

means for operating the apparatus, as shown Witnesses: and described. 7V R. T. CLARK,

In' testimony whereof we hereunto affix R. G. HALL.

